Make charger for 12v sealed lead acid battery with xl4015 buck converter | Safe charging with xl4015
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- เผยแพร่เมื่อ 15 ก.ย. 2024
- How to charge 12v sealed lead acid battery safely | Balance charge SLA battery with CC CV XL4015 How to Make a 12 Volt Battery Charger
In this video you will learn about safe and balance charging of 12v sealed lead acid battery with constant voltage and current using xl4015 cc cv buck converter module..
it has both options for voltage and current control by which proper voltage and current value can be set for safe charging of SLA battery also other type of batteries.
watch this video about xl4015 module
• XL4015 DC-DC Stepdown ...
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LOL You have a good sense of humor. Good video.
Its 14.9V initial charge until it reaches 14.9V trigger voltage that is when the second voltage kicks in of 13.80V. So, the charger would need two different charge voltages. Charge and float.
Dear, this modulator charges a lithium battery in parallel and adjusts the ampere on the cam. Thank you
😊Nice
Can I use 12 volt 1.2 amp adaptor to charge 12 volt 7Ah battery.. With this buck converter, Can it boost 12 volt from the adaptor to 13.8 volt?also I want to charge the battery slowly.0.8-0.9 amp current is required.
No it is buck converter.. you have to use 15v adapter for this...or use boost converter..
I did burned out one blue colour identical xl4015 module when tested current output . I think problem was connecting test lead when module was powered on . Test lead made sparks . xl4015 started overheating . I have 9AH battery , I set current to 2.25A
It heats but automatically shut down when temperature is too high..
I think you connected with wrong polarity or the module was faulty.
I ordered mine it regulates 5v below that voltage well eg 4.2V to charge lithium but when I try to put 3 or more 18650 battery in series as input I can't regulate it ..because both red and green light become on
What is the problem sir
You cannot charge 18650 cells in serious without bms... with this module, you can only charge in parallel.
Please do more videos of this module
What happens if you connect it direct to a solar panel with 9v
It will work fine. You can connect it to even big truck battery of 200Ah.
Only input voltage must be in range from 5v-32v dc.
Hi since you invited questions can you answer this one, you said lead acid shouldnt be fast charge since that can be dangerous, now there are millions of cars around where the alternator gives out at least 70 amps, these dont current limit which means the battery gets the full current minus what the car is using, the question is have you ever heard of a car battery expl*ding from been overcharged?
an alternator charges what is needed by the battery and the electrical load, if the battery is fully charged and the load is light the alternator will charge just enough to keep up with the load, a high output alternator means that it can deliver a high output if needed. High output has nothing to do with the volts, it means it can charge higher amps than a low output when needed. Also its voltage is some little over 12v rather than 14v which damages the battery by overcharging it.
Just as a vehicle will not be faster or use more fuel with a full tank than with a tank that is only half full the high output alternator will not deliver more amps when not needed.
@@Electricquantism402 Exactly that an alternator give out whats needed by the battery, if the battery needs 50 amps it will deliver that, I notice you mention voltage been little over 12v but if thats the case put a clamp amp meter and the battery and a volt meter, start the car and see what readings you get.
DOES IT HAVE AUTOMATIC CUT ON AND OFF FOR CHARGIN?
Yes..
Sir I have a 24 volt 3 amo power supply and want to charge a 12v 7ah battery, as you suggest to set the limit voltage and current but after full charge is it necessary to remove battery from charging connector, I mean will it be automatically cut off charging after fully charged because i want to engage it to my mini home ups to charge the battery?
No need to remove the module because this module don't do trickle charging, but if you don't remove it, green LED on module always stay on which discharges the battery very slowly..
It will be fixed by placing a diode so that the battery will not be discharged
Please make a video on how to save electricity bill by converting my air cooler to 12v supply
Ok 👌 done.
Can I use 12V 2amp charger instead of that 65watt charger to get 13.8V 1Amp output from that buck converter?
No..it is step down converter. You have to give at least 14v to get 13.8v output at 1Amp.
@maxmarrero9635 when you short the terminals with ammeter on this module, it enters into current setting mode...and value is displayed on ammeter
Can we use load(12vbulb) in this battery while its charging?
Yes.
But for what purpose you want to do?
@@Electricquantism402 for home ...when there is loadshedding..at that time we can use it...how can I contact you? I want to ask you some questions regarding this things
@@somnathghosh_111 WhatsApp
+923166927465
Excusme sir, i have a question ?? In many source to charge lead acid properly, there is CC CV charging method more simple is CC gonna use at 0 - 90% SOC, CV 90 - 100% SOC of battery. So this is my question, is Module XL 4015 do this scheme CC-CV automatically after you set 2 parameter voltage and current in early video ?? Thanks 🙏🏻
Yes..this is what xl4015 is designed for.
Do I need to add diode in the output of xl4015... In case of charger is disconnected and module still connected to the battery.
Let me know what will happen...
Yes you can add
@@Electricquantism402 what if I don't add any diode?
@@uixsohel module's LED will glow just due to reverse current of battery.. still its fine..will not do any damage to module..
@@Electricquantism402 Thanks, That's the answer I was looking for. I'm using like this for 2 days, I was worried this could damage my module in the long run.
Now that's a relief 😌
Thanks again
@@uixsohel no problem. You can ask anything anytime as i mentioned it in the video.
i have a 12v battery NiMh 2,4Ah. i got 3 of it. can i charge all 3 at the same time with one 4015xl buck. and if its possible. what do i have to set it. thanks
Set 12.6v and current 3A max and connect all three batteries in parallel.
It's better to charge them separately with 1A max
@@Electricquantism402 so then i need 3x 4016buck and a minimum power supply of 24v 3a?
@@tahirtrs3147 as you wish..you can also charge at the same time..
And not 24v 3A 15v 3-4A will also work to achieve 12.6v
@@Electricquantism402 thanks for the info👊
Hi, I would like to ask how many volts a 12v 17Ah lead-acid cyclic bicycle battery should be charged? Thank you in advance for your answ
Voltage should be between 13.8-14v
And current should be 25% of its capacity which is 4.1A max.
These are the parameters for charging your battery safely.
What happens if you connect it to a power bank of 5v connect it to a power bank and show us how it can boost the power and what you can power with a power bank using that module
According to this.. module turn on at 5v input. This module is buck converter means it step download voltage. With powerbank module, its output voltage will be around 4.5-4.7v at 1-1.5A current depending upon the power outage of powerbank module.
Hi can you give me a hand? I am designing a smart vaccum cleaner(D.I.Y version of roomba) and i need to charge my battery safely.The battery is Li-ion 3s 11.1v with 2.6AH.Can i use this module to safely charge it without burning down my house?Also how many hours does it need to charge 11.1v battery?
Yes.
Ok 3s li-ion..so tell me that BMS is installed in it or not?.
If yes then set voltage to 12.6 and current to 1.5-2amps...li-ion battery can be fastly charge to some extent...BMS will handle all the things itself for safe charging.. nothing to worry..
If you have more questions then send msg on below WhatsApp number
+923093333809
@@Electricquantism402 Bro how should i check if bms is installed?
@@TRAZExYT contact me on WhatsApp or messenger and share your battery pics..i can better guide you there.
facebook.com/profile.php?id=100009456744428&mibextid=ZbWKwL
+923093333809
@@Electricquantism402 Can i charge a 11,1v 2.6aH 3s lion battery with xl4015 and cn3791 conjucted,What i mean is xl4015 provide a constant 12.6v and 1.3amp which is supplied to 12v mppt cn3791 and battery is connected to cn3791.cn37991 handles the charging process
@@TRAZExYT yes it will work..
No matter cn3791 controls the charging.. xl4015 provides the voltage and set current.
I having 12-0-12 transformer rated for 2 amps. Not considering center tap if I use this as 0-24v can I give the rectified Dc to buck converter.
Yes you can.. you can give 35v max input to this module..
Lm 358 use 6v auto cut off battery charger circuit please request
Thanks for reminder
Module corner hole screw size please
Iss xl4015 module battery ko over charge kareta hai kya please reply
No. Current flow ruk jata hai jb battery full charge ho jaye.
@@Electricquantism402 lithium ion battery kharab to nhi hoga na..
Nhi bro..no tension.. its a safe charger
@@Electricquantism402 Hmm
🔥✅
how many ampier is perfect output for use 12 volt 9 amp lead accid battery charge?
2.2A for 9Ah battery.
6 v 7 amp..battery charging volt value?
7.2v 1.5A
Hi, to charge a 2,5Ah battery i need 13,8V and 625mAh but i have a 24Volts power supply with only 400mAh. Can the xl4015 compensate for the missing amperes?
Yes..it will half the voltage and double the current for compensation of total power.. current will be 7-800mah.
@@Electricquantism402 Ok! Thanks for the answer!
Can I use 0-12v transformer instead of 19v adapter
No..12v transformer will not provide 15v which is essential to gain 13.8v on the xl4015 to charge battery...
Use at least 15v dc power source or 15v transformer with rectifier on the output.
I want to convert 24 volt to 12 volt from a smps power supply of 10 amp capacity(240w), with a buck converter. Can It capable to produce same wattage of 240 W at 12 volt out put.
This converter handles only 75w..
You need 300w 20A buck converter..
Checkout the video on my channel...
It will be perfect for your application.
Just buy in on AliExpress
Iss module me 24v 3amp input da sakte hai
Yes..35v tk input de skte hain.
@@Electricquantism402 heating issue to nhi hoga na
@@luckyrawani8952output current 4A tk set kroge to heat hoga..5A max handle kr skta hai ye module.
Output pe kia chlana hai apne?
@@Electricquantism402 Mera pass 24v 3amp Ka DC power supply hai jis sa input dena hai or output me 14.8v 1.5amp Lena hai jis sa hum 12v lifepo4 charge kare sake
@@Electricquantism402 input me itna volt dena sa module kharab to nhi hoga na
fine but in manual 1. first set OUT=5V 2. set current for acid battery 10% ( better or fast 20%) so for 17 AH set 1,7 A 3. Set voltage about 14 V - then !!! connect battery
i am trying to charge a 12v 7ah battery using the XL4015...i set the XL4015 at 13.5v and at 1.4amps..however when i connect the 12v 7ah battery to the XL4015 output both the red and blue lights up at the same time...i tried it on another 12v 7ah battery but the same thing happens...both the red and blue lights on the XL4015 lights up at the same time...what am i doing wrong?...i am using a 19v 3.42amps laptop power supply as my power source...please help me.
There is nothing wrong in this as long as the current is flowing..
Red LED lights up in the beginning but as soon as the battery is close to full charge, it turns off and that time only blue led glows.. while at the end, green led indicates that the charging is full..
But please make sure with the help of clamp meter that current 1.4A is flowing towards battery during charging or not?.. let me know..
Or also that the polarity is correct?
@@Electricquantism402thanks for the reply. i have it at exactly 1.4amps and 13.5 v...i found out that at the back of the XL4015 has a light indicator...the lights are for current and voltage...i think it was just normal for both the lights to turn on...i charged the battery for 7 hours and charged for only 11.8 volts...it did not go up anymore as i charged it again for 1 hour still at 11.8v...these batteries were purchased about 3 months ago and was inside a ups...do i need to add distilled water to the battery as maintenance? it is a sealed battery.
@@newvaper3794 add battery distilled water about 10ml each cell.
Then charge it on 13.8-14v..
If its cells are not damaged or shorted then it will start to hold charge and provide backup..
@@Electricquantism402 thanks. i will update you again tomorrow. thanks for all the answers. keep safe. sorry i thought i was already subscribed to your channel. i apologize i just subscribed now.
@@Electricquantism402 it is working now...added 10ml of distilled water to each cell. yes !!!...i can now use my UPS on my laptop...i have another question..it took time to fully charge the two batteries, why is it that the XL4015 green light light up when the battery is connected?...is there a way to only have the led lights turn on when charging the battery?...it looks like it loops the charging to the battery back to the XL4015 that is why it took a lot of time...thanks again for helping me.
Can I input 12v adapter?
Yes..5v-35v dc input range
@@Electricquantism402 I need 12.6v output
@@bibhas7783 no.. you need at least 13.5v input to get 12.6v output...
Ok thanks 👍
I want to buy it
Check online . Might be available at electric store.
Sir, in which country do you live in?
@@shamanthks7218 Pakistan
My battery shows as charged but its surface charge causing this light to come on and its not like current stops - theres a third light on my module i wonder what that stands for?
I didn't understand your typing.
Bhai Hindi Me Banao Na English Mai Video Banake Kisko Sikhaoge Foreigner ko ..
Not good for Lead-Acid battery, if battery is discharge below 11v the XL4015 will overheat and it will burn out, it will not shutdown automatically because there is 12v battery in output connected that will continue to power up some parts of the module
It will overheat only if current is set to more than 4A. At 2-3A it works fine even if highly discharged battery is connected to it.
@@Electricquantism402
Can we use a Small fuse?
Tell me how many amps ( fuse)
@@Electricquantism402
If the Battery is discharged
Does the module detect and automatically charge it